Base | Representation |
---|---|
bin | 1000010101011100010010… |
… | …10100010111011011100000 |
3 | 2101220020011121001211122200 |
4 | 10022232021110113123200 |
5 | 4400300121343110342 |
6 | 102552105512533200 |
7 | 3601135645125543 |
oct | 412561124273340 |
9 | 71806147054580 |
10 | 18328929269472 |
11 | 5927289813918 |
12 | 20803293b1200 |
13 | a2c54516ccc3 |
14 | 4751a6a7885a |
15 | 21bb9e18c94c |
hex | 10ab895176e0 |
18328929269472 has 72 divisors (see below), whose sum is σ = 52125419029320. Its totient is φ = 6109346952960.
The previous prime is 18328929269467. The next prime is 18328929269509. The reversal of 18328929269472 is 27496292982381.
18328929269472 is a `hidden beast` number, since 1 + 8 + 3 + 2 + 8 + 9 + 2 + 92 + 69 + 472 = 666.
It is a tau number, because it is divible by the number of its divisors (72).
It is a Harshad number since it is a multiple of its sum of digits (72).
It is a self number, because there is not a number n which added to its sum of digits gives 18328929269472.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4450054 + ... + 7514042.
It is an arithmetic number, because the mean of its divisors is an integer number (723964153185).
Almost surely, 218328929269472 is an apocalyptic number.
18328929269472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
18328929269472 is an abundant number, since it is smaller than the sum of its proper divisors (33796489759848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18328929269472 is a wasteful number, since it uses less digits than its factorization.
18328929269472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3084776 (or 3084765 counting only the distinct ones).
The product of its digits is 376233984, while the sum is 72.
The spelling of 18328929269472 in words is "eighteen trillion, three hundred twenty-eight billion, nine hundred twenty-nine million, two hundred sixty-nine thousand, four hundred seventy-two".
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